To the OP: Everyone who has posted here has their opinion and so do you but calling them "rude" when they have a different opinion than you and not attacking you personally seems childish to me. I'm not a mod but constant name-calling should not be tolerated on this forum. Some people do post on threads with sarcasm but from what I've seen, it's never personal and should never be.
Back on the subject: I pretty much agree with everyone who says autographs work and that a sticker and a stamp will not suffice. A stamp with ink will fade away eventually and it won't work for other products like signing shirts or hats. You can buy stickers anywhere but you can't buy autographs (Well, technically you can buy autographed merchandise and memorabilia but they're all so expensive in the hundreds, thousands or even millions of dollars.) so just giving something that can be easily found in a general retail store is just not interesting and creative. You can't assume that a stamp or sticker will work for everyone but at the same time, some people are not crazy about character autographs in general. By the way, it's not just children who like those autograph books, there are first time visitors and character fanatics who are not young children and love the characters like they do. I have three autograph books myself but I don't care what negative feedback I may get because each book represents a different trip and different memories I will always cherish.
If you really didn't want to take away time from other people trying to the meet the character, I would think that some would even argue maybe you should consider skip the characters altogether. All I can say is how you handle the M&Gs is entirely up to you. If your kids are not crazy about autographs and just want pictures, that's fine. If they just want an autograph but no picture, that's fine, too.
